Leo F. Mazur, 89, of Jeannette, died Monday, April 24, 2023. He was born June 10, 1933, in McKeesport, a son of the late John and Sophie Warcholak Mazur. Prior to retirement, Leo worked in the finance department at Elliott Co. He was a member of St. Barbara's Church in Harrison City. He enjoyed rubber and duckpin bowling from a young age along with fishing and following the stock market. In addition to his parents, he was preceded in death by his siblings, Stanley Olszewski, Edward Mazur, Adella Komaromy, Helen Mazur and Chester Mazur. He is survived by his loving wife of 52 years, Anna Marie Mazur; two children, Vicki Dougherty (Perry), of Gibsonia, and Mark Mazur (Chrissy), of Jeannette; three grandchildren, Avery, Cole and Paul; and numerous nieces and nephews. Relatives and friends are invited to celebrate the life of Leo from 2 to 4 and 6 to 8 p.m. Friday in the OTT FUNERAL HOME INC., 805 Pennsylvania Ave., Irwin, 724 863-8900. Prayers of transfer will be said in the funeral home at 9:25 a.m. Saturday followed by a funeral Mass to be celebrated at 10 a.m. in St. Barbara's Church, Harrison City. Entombment will follow in Twin Valley Memorial Park, Delmont. For online condolences/ directions, visit us at www.ottfuneralhome.com. To plant trees in memory, please visit the Sympathy Store.